400k apartment, drive it there, slam in center, drive adder out, get out to confirm the personal vehicle icon is gone, drive it to lss and bang it up, Park front tires in garage, call mechanic, highlight rebel, drive into garage, them press a to deliver and right to enter garage, then select sell fast, wait for the red circle to go away, then hit sell again. Once outside call insurance for the car, then go online and buy another rebel, and after that order another journey, steal car and drive over. I've learned that invite sessions work well, not getting a wanted level works well, not stealing one of those wanted cars works well. The way I was doing it above it worked every time and roughly in a couple of days of playing for a couple of hours I got 20 million. If you timed it right the rebel gets delivered right as you pull up in the journey

On another note, I've done the glitch myself but I want to know what I'm doing wrong, since I can only do it once per IO session, whereas there are people who have no problem doing it multiple times in 1 session. I followed the steps exactly, except I call for my Adder, then get the Journey, then order the Rebel.